Answer:
An Operating System performed all the basic tasks like managing memory and files. It is interface between user and machine and acts as manager of all resources.
Types of operating system are:
Real-Time Operating System-
Real time operating system is the types of OS that serves as the real time systems. The time interval are required to process and respond inputs are very small. So the time interval is known as response time of the system.
Distributed Operating System-
It an advancement in the world of computer technology where, many computers are interconnected to communicate with each other using a shared communication network. They are known as loosely coupled and a distributed system.